BS EN 13501-3:2005+A1:2009 Fire classification of construction products and building elements. Classification using date from fire resistance test on products and elements used in building service installations: fire resistance ducts and fire dampers. BS EN 13501-3:2005+A1:2009建筑产品及构件的燃烧性能分类.第3部分:根据耐火试验数据进行分类,通风管道及防火阀(防火挡板)。
BS EN 13501-3通风管道及防火阀耐火测试,请咨询中国防火网 中国防火网全国免费咨询电话:400-666-7290 网址:www.firete.com 邮箱:info@firete.com
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